This Fetch API interface allows you to perform various actions on HTTP request and response headers. These actions include retrieving, setting, adding to, and removing. A Headers object has an associated header list, which is initially empty and consists of zero or more name and value pairs.  You can add to this using methods like append() (see Examples.) In all methods of this interface, header names are matched by case-insensitive byte sequence.

Hierarchy

  • Headers

Methods

  • Parameters

    • name: string
    • value: string

    Returns void

  • Parameters

    • name: string

    Returns void

  • Parameters

    • callbackfn: ((value, key, parent) => void)
        • (value, key, parent): void
        • Parameters

          • value: string
          • key: string
          • parent: Headers

          Returns void

    • Optional thisArg: any

    Returns void

  • Parameters

    • name: string

    Returns null | string

  • Parameters

    • name: string

    Returns boolean

  • Parameters

    • name: string
    • value: string

    Returns void